On Fri, Jun 27, 2014 at 10:42 AM, Dave Hansen <dave.han...@intel.com> wrote: > On 06/27/2014 10:34 AM, Dave Hansen wrote: >> I'm claiming that we need COW behavior for the bounds tables, at least >> by default. If userspace knows enough about the ways that it is using >> the tables and knows how to share them, let it go to town. The kernel >> will permit this kind of usage model, but we simply won't be helping >> with the management of the tables when userspace creates them. > > Actually, this is another reason we need to mark VMAs as being > MPX-related explicitly instead of inferring it from the tables. If > userspace does something really specialized like this, the kernel does > not want to confuse these VMAs the ones it created. >
Good point. --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
